Question

您好我正在使用spout来运行一些excel报告。我有一个用户界面，他们输入日期，模型和其他信息然后我做GET将其发送到PHP脚本，我运行查询，然后将所有结果放入这样的excel文件：

ini_set('max_execution_time', 600); //300 seconds = 5 minutes
require_once 'spout-2.7.2/src/Spout/Autoloader/autoload.php'; // don't forget to change the path!
use Box\Spout\Reader\ReaderFactory;
use Box\Spout\Writer\WriterFactory;
use Box\Spout\Common\Type;

$reportDate=date("Ymd_hhmmss");
$filename="combined_report".$reportDate.".xlsx";

include ("../log/connectionToDb.php");
$conn = connectionSQL();

//provide error if connection fails
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}

//connected successfully to db. Do not echo anything otherwise it will not show up on dropdown.
else {

//echo "connected";
}

  //From date and to date static in case not provided by user 
$fromDate = $_GET['convertedFrom'];
$toDate = $_GET['convertedTo'];
$line= $_GET['selectedLine'];
$model_num=$_GET['modelNumber'];




$writer = WriterFactory::create(Type::XLSX);
ob_start();
$writer->openToBrowser($filename);
$sheet = $writer->getCurrentSheet();
$sheet->setName('Production Data');
$rowCount = 2; 
$flag=false;


$production = "query";  


//echo memory_get_usage() ;
$result1 = sqlsrv_query($conn, $production);

if($result1 === FALSE){
    die(print_r(sqlsrv_errors(), TRUE));
}

do{
      if(!$flag) {

          $headerRow = ['line', 'Work order','Model number', 'Revision','Serial number','Lpn','Date created','Date completed'];
           $writer->addRow($headerRow);
          $flag = true; 
      }
      else{

          $reportRow = [$row['line'], $row['work_order'], $row['model_num'], $row['revision'],$row['serial_num'],$row['LPN'],$row['date_created'],$row['date_completed']];
           $writer->addRow($reportRow);

          $rowCount++; 
     }  
}
 while ($row = sqlsrv_fetch_array($result1));



$writer->close();
$xlsData = ob_get_contents(); 
ob_clean();
$response =  array(


           'op' => 'ok',
            'file' => "data:application/vnd.ms-excel;base64,".base64_encode($xlsData)
        );


   }
die(json_encode($response));

然后在AJAX调用中我有以下内容：

 $.ajax({
    url:  'modelData/excel-export.php',
    method: "GET",
    data: {'modelNumber':modelNumber,'convertedFrom':converted_from_UTC,'convertedTo':converted_to_UTC,'selectedLine':selectedLine},
    dataType:'json',
    success: function(fileCreated){
    }

}).done(function(data){
   console.log(local);
var $a = $("<a>");
$a.attr("href",data.file);
$("body").append($a);
$a.attr("download","combined_report_"+local+".xlsx");
$a[0].click();
$a.remove();
  });

现在如果我在Firefox中运行它一切正常我可以下载长达4个月的数据，这是> 60,000条记录，这没有问题。如果我在谷歌浏览器中运行这个我不能下载超过1周大约20,000条记录，你得到一个“下载失败 - 网络错误”我使用PHPExcel但后来发现它不支持太多记录所以我切换到喷口但是我只在谷歌浏览器中找到相同的问题，但我不明白这个限制来自何处。我已经阅读了多个帖子，我已经尝试设置标题，长度等，但没有任何工作，我也与一个spout论坛聊天，他们说没有标题是必要的，但他们仍然无法帮助我。

我认为这个问题Download failed - network error in google chrome but working in firefox可能会接近与我的问题相同的方向。

此外，我已尝试运行隐身模式chrome我已尝试禁用所有扩展程序

作为旁注......火狐下载似乎工作正常，但我们不“支持”Firefox，因此客户很难去多个浏览器，特别是当他们不是技术娴熟时

任何帮助将不胜感激！：）

Answer 1

通过执行以下操作，我能够解决此问题：

JS

window.open("modelData/excel-export.php?modelNumber="+modelNumber+"&convertedFrom="+converted_from_UTC+"&convertedTo="+converted_to_UTC+"&selectedLine="+selectedLine,
  '_blank'// <- This is what makes it open in a new window.
  );

然后在PHP方面：

ini_set('max_execution_time', 600); //300 seconds = 5 minutes
require_once 'spout-2.7.2/src/Spout/Autoloader/autoload.php'; // don't forget to change the path!
use Box\Spout\Reader\ReaderFactory;
use Box\Spout\Writer\WriterFactory;
use Box\Spout\Common\Type;

$reportDate=date("Ymd_hhmmss");
$filename="combined_report".$reportDate.".xlsx";

include ("../log/connectionToDb.php");
$conn = connectionSQL();

//provide error if connection fails
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}

//connected successfully to db. Do not echo anything otherwise it will not show up on dropdown.
else {

//echo "connected";
}

  //From date and to date static in case not provided by user 
$fromDate = $_GET['convertedFrom'];
$toDate = $_GET['convertedTo'];
$line= $_GET['selectedLine'];
$model_num=$_GET['modelNumber'];




$writer = WriterFactory::create(Type::XLSX);
$writer->openToBrowser($filename);
$sheet = $writer->getCurrentSheet();
$sheet->setName('Production Data');
$rowCount = 2; 
$flag=false;


$production = "query";  


//echo memory_get_usage() ;
$result1 = sqlsrv_query($conn, $production);

if($result1 === FALSE){
    die(print_r(sqlsrv_errors(), TRUE));
}

do{
      if(!$flag) {

          $headerRow = ['line', 'Work order','Model number', 'Revision','Serial number','Lpn','Date created','Date completed'];
           $writer->addRow($headerRow);
          $flag = true; 
      }
      else{

          $reportRow = [$row['line'], $row['work_order'], $row['model_num'], $row['revision'],$row['serial_num'],$row['LPN'],$row['date_created'],$row['date_completed']];
           $writer->addRow($reportRow);

          $rowCount++; 
     }  
}
 while ($row = sqlsrv_fetch_array($result1));



$writer->close();

我正在使用的库与AJAX不能很好地工作，所以这种方法解决了我的问题。感谢所有的帮助：）

Answer 2

我使用Blob Javascript来解决同样的问题。这个链接可能有助于某人： Blob

firefox

2 个答案: